Stamping-press.



noivzmssi f 7 PATBNTED MAY19,'190,8

' a JF.' HEYSI STAMPING PRESS.

APPLICATION FILED JULY 5, 1901 v Fig.1.

no MODEL. 6 snnz'rs -snn'nzr 1.,

PATENTED MAY 19, 1-903;

I .J. J. HEYS.

v STAMPING PRESS.

APPLIQATIONIILED JULY 5, 1901.

a SHEETS-SHEET 2.

H0 MODEL.

No; 728,463. 7 PATBNTED MAY 19, 1903-.

J. J.1HBYS. I STAMPING PRESS.

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UNITED STATES Patented May 19, 1903.

PATENT OF ICE.

JOHN J. HEYS, OF YNN, MASSACHUSETTS,ASSIGNOR or ONE-HALF TO MAURICE v. BRESNAHAN, or LYNN, MASSACHUSETTS.

STAMPING-PRESS.

SPECIFICATION forming part of Letters Patent No. 728,463, dated May 19,

.Application filed July 5, 1901. Serial No. 67,138. (No model.)

T0 aZZ whom it may concern:

- Be it known that I, JOHNJ. HEYS, of Lynn, in the county of Essex and State ofMassachusetts, have invented certain new and useful Improvements in Stamping-Presses, of which the following is a specification.

This invention in its broader aspect consists of 'appess or similar machine wherein 5 two members are provided, one movable toward and from the other and adapted to receivematerial (termed the work) between them, with automatic provisions whereby the degree ofpressure uponthe'work is the same irrespective of the thickness of the work.

By the term press I mean to include all manner of machines by means of which a compression is eifected,whether that compression be employed for the purpose of forcing nails, pegs, or other fastenings into the work for securing heels to shoes or for embossing or'impressing symbols or characters upon the work, as Well as other analogous machines wherein an operative member is moved by power toward and from another fixed member.

In order to make myinvention plain, I have illustrated it upon the accompanying drawings in the form of a machine for stamping characters or Symbols upon th'e'sole of a boot or shoe; but I desire to have it understood at the outset that the invention is not limited thereto, but may be expressed in divers other forms, which will readily suggest themselves to those Skilled in the various arts and sciences. Therefore the terms whichI employ in the following specification are not for'purposes of limitation, but rather for the purpose of description, and the parts shown and dechine in which a plurality of members are mounted upon theturret to coact one by one with the movable member. Fig. 8 represents a front elevation, partially in section, of the turret. Figs. 9 and 10 illustrate means for varying the degree of compression of the work between the two members. Fig. llillustrates a sample of the work accomplished by the machine illustrated in the drawings.

Referring to said drawings, the machine therein illustrated comprises the two upright standards 20 21, connected at their lower ends by the tie-rod 22. The said standards are provided with the upright guide rods or bars 23, which receive the stationary crosshead 24. Said cross-head is securely held against movement by nuts 25, screwed upon the upper threaded ends of the guide-rods 23 and clamping said cross-head against the stationary tubular brackets 26 This cross-head forms a solid resisting-abutment for the stationary member, which in the presentinstance consists of a stamping-die 27, having a shank rigidly secured by a setscrew28 in a hollow support 29, attached by bolts 30 to the under face of the cross-head 24. Steam-pipes 31 communicate with the chamber132 in said support for the supply of live steam theretoin order that the die may be heated to the required temperature. The movable member consists in the present case of a horn 32, adapted to be revolved about a vertical axis and swiveled upon an upright pivot 33, inserted in a socket in the movable cross-head 34. This movable cross-head is mounted to slide upon the guide-rods 23 and is actuated toward the stationary cross-head by devices which I shall explain, returning to initial position by its-own weight.

The mechanism for actuating the movable member 32, as illustrated, includes a prime in a position convenient for the operator and is normally raised by a spriug42. The clutch itself may be of any desired type, such as that indicatedconventionally at 43, and actuated by the sliding sleeve 44, with which the bell-crank is engaged. By depressing the foot-lever or treadle the clutch is actuated to connect the pulley with the shaft and cause the rotation of the latter. Upon its other end the shaft 35 is provided with a pinion 44, intermeshing with and driving a gearwheel on a cam-shaft 46, which is located directly below the pivot 33 for the born 32, as is clearly shown in Fig. 3. Upon the lastmentioned shaft is secured a compressing or actuating cam 47, by which the movable memher is forced to a position of pressure. This cam is in the shape shown in Fig. 3, being provided with the depressed periphery a, the relatively long concentric raised periphery b, and the swell or rise 0, by means of which the movable member is raised from the lowered position to its position for pressure, and then its position of pressure, it remaining in the position of pressure but an instant. The cam47, which I may term the actuator, acts upon the roll 48, journaled upon a pintle or stud 49 in the bifurcated end of a lever 50. This last-mentioned lever is fulcrumed upon a cross-shaft 51, secured in brackets 52 on the standards 20 21, and said lever is held against lateral movement by collars 53, secured to said cross-shaft 51 by set-screws 54. The movable member is supported by the lever 50, as will be explained, so that when said lever and roll 48 are raised and lowered by the cam 47 the cross-head and the movable member are actuated with them. Between the lever and the movable member, however, I interpose automatic compensating devices, which are controlled by a cam 55 on the said shaft 46. By means of the compensating devices I provide for the work receiving the same degree of compression regardless of its thickness between certain limits; but said limits may be varied according to the type and construction of the machine. Fulcrumed upon the stud 49 is an angle or bell-crank lever having the arms 56 and 57. The arm 57 may be formed separately from the arm 56; but, as shown in Figs. 5 and 6, they are integral in the present machine. On the end of the arm 57 is journaled a roll 58, adapted to be engaged by the cam 55 during a portion of the rotation of the latter. The end portion of the arm 56 is swelled upon its end to extend from front to rear, and the extremity of said arm is formed to provide a curved face 59, which is eccentric of the roll 48. Upon this face 59 rests the lower curved end 341 of the movable cross-head 34. The

said face 59 is provided at its ends with stops 601 611 to limit the oscillation of the arm 56, said stops being adapted to engage the said cross-head. The said arm 56 forms a direct support between the lever and the movable cross-head 34 and the movable member 32; but by oscillating the said arm 56 to the rear the said last-mentioned cross-head is moved away from the roll 48 by the wedging action of the face 59, whereas when the arm 56 is swung forward the movable cross-head is permitted to drop nearer said roll 48, and the movable member is therefore further separated from the stationary member.

The eccentric face 59 constitutes, as will be seen, a wedge interposed between the cam 47 and the movable member, said wedge being moved in one direction by the cam and in the other direction by yielding means, which I shalldescribe. Said means may consist either of a spring or a weight, and I employ either at will, although, for the purpose of illustration, I have shown the arm 56 as provided with a rear extension 60, upon which a weight 61 is adjustably secured. This weight is sufficient to swing the eccentric wedge rearwardly when permitted by the cam 55 and to raise the movable member and the jack or horn thereon toward the stationary member. The cam 55 is so formed and it is so located with respect to the cam 47 that during the time that the roll 48 is riding upon the portion a of the periphery of the cam 47 the cam 55 engages the roll 58 and swings the eccentric wedge forward. As soon as the roll 48 reaches the portion b of the cam 47 the roll 58 is released or rides off the cam 55, and the weight 61 swings the eccentric wedge rearward, forcing the cross-head and the movable member upward until the work is clamped firmly between the two members. The eccentric wedge remains in this position until the swell c lifts the crosshead and movable member for the final compression of the material between said members.

By reason of the downward pressure of the ICO movable member upon the eccentric face of the arm 60 there is a tendency of the said arm to slip forwardly when the pressure upon the movable member is greatest, and therefore I provide means for overcoming this tendency and neutralizing the lateral thrust. It will be observed in Fig. 4 that the movable cross-head 34 is provided with a rearwardly-curved extension 341, which bears upon the face of the periphery. This extension is on one side of a line connecting the axis of the roll 48 with the center of the pivot 33, so that the tendency of the said extension 341 is to thrust the curved arm 56 rearwardly, and this is sufficient to overcome the tendency of the contacting face of the cross-head and the arm to swing the said arm forward. This may be considered an important feature of the invention. From this it will be observed that I have provided a stationary non-yielding member, a member which is movable positively toward and from the stationary member, and automatic compensating devices, whereby the degree of movement of the movable member is regulated by the thickness of the work between them, the degree of compression being in all cases exactly the same.

I regard the positive actuation of the movable member as important, since I am enabled to discard springs and other yielding devices by which the compensation. hasbeeneffected,

and so far as I am aware I am the first to have provided the devices thus briefly described in thepreceding statement.

In. Fig, 11 is show-n a shoe-sole having the impression Pat. welted seam shoe as an illustration of the work that canbe accomplished by the invention. I

It is evident that where a manufacturer is making various lines of shoes which are called by different names it is desirable to employ dilferent dies without the necessity of replacing them singly, and therefore I have shown in Figs. 7 and 8 a construction in which the dies are mounted upon. a turret. In this event the abutment consists of the shaft 62, upon whichthe turret 63 is journaled. The said turret has radial apertures for the reception of the shan-ks'of a plurality of dies 27 271 272, 85c. Upon the'shaft is placed a stationary hollow shell 64, into' which thesteam may be fed for the. purpose of heating the dies, said turret being provided with an overlapping flange 65 to provide a relatively large contacting surface foraidingthe transmission of heat. The turret is held rigidly against movement by a stop-pinto, placed ina collar 67, pinned to the stationary shaft 62 and adapted to enter any one of a series of apertures 68in the hub 69. of-the turret 63.: The pin66 is arranged in a socket inthe collar and is held yieldinglyinward by a spring 70. By withdrawing the pin the turret may be rotated to bring any desired die into alinement with the movable member or horn, after which the turretmay be securely locked against rotation.-

It may be necessary to vary the degree of compression of the work, andto this end the swell c on the cam 47 may be made movable in a direction parallel with theaxis of the shaft 46 and be formed as a wedge, as indicated at 72 in Figs. 9 and 10.. Itis beveled at its edges to slide in a groove in said cam, being adjusted by a screw 73, passed through a bracket 74 on the cam and having an enlarged head 75 to facilitate its rotation. The adjustment of this swell or rise on the cam permits the compensation to-wear and may be found quite desirable in many cases.

It is unnecessary to furtherelabo'rate the desirable features of this invention, for they are apparent upon inspection. 7

Having thus explained thenature ofthe invention and described a way of construct: ing and using the same, although without attempting to set forth all of the forms inwhich it may be made or all of themodes ofits use, I declare that what I claim is v 1. A machine of the character. described comprising two coacting members, adapted to receive work of different thicknesses between them, one of said members beinga jack adapted to support a shoe, and the other being a die, power mechanism having a,..prede.ter* mined range of movement, compensating mechanism interposed. between said. power mechanism and one of. said members,;.said mechanisms being constructed,arranged, and timed whereby said last-mentioned member is primarily moved by the compensating mechanism to cause both said membersto preliminarily engage the work between them, and one of .the said mom bers'is then moved'a-predetersating device to' move said last-mentioned member until it is'stopped by it"srengagement with the work, and a-;prime'powersshat'tlfoir operating said actuating means and said mechanism, whereby said .lastvmentioned member'is'first moved to-initially grip; the work between it and the other member, as described, an'done of saidmembers is. then moved a predeterm'inedextent to finallycompress the work betweensaid members;

.A- machine comprising coacting. H1611]?- bers adapted toreceive work of different thicknesses betweenlthem,oneof-said members being adapted to supporta shoe,-com-i pensating mechanism for automatically move ing one of said members until-it is stopped v byits engagement with the workx-in position forrpressure irrespective of thethickness of the work, means formoving one of said men]. bers a predetermined, extent to a position :of

pressure, and a prime power-shaft for actuating said mechanism and said means.

4. A machine comprising coacting members adapted to receive the work between them, mechanism for automatically and yieldingly moving oneof said membersa variable distance until it is stopped by its, engagement with the Work to clamp the work between the two members, mechanism for automatically and positively-movingone of'said members a constant distance to compress the;work,

and a prime power-shaft for actuating said mechanism. 7

\ 5. The combination of coacting members, 'an actuator, a' wedge between .one of said members andsaid actuator, meansfor automatically causing said wedge to move the member relatively to'the actuator, until said member is stopped by its engagement with the. work, provisions wherebysaid actuator moves one of said members a predetermined distance to compress thework, anda shaft formoving said actuator and said means.

6. The combination with a stationary member and a movable member, of a swinging wedge having its axis intersecting the lines of movement of the movable members, provisions for automatically moving said wedge first in one direction and then in the other in succession, and an actuator having a predetermined range of movement for moving said wedge bodily in the lines of movement of said movable member to thereby actuate the movable member,after said wedge has been moved, as described.

7. The combination with a stationary memher and a movable member, a cam, a cam-actuated lever carrying a swinging compensating arm, upon which the movable member rests, a cam for moving said arm toward inoperative position, means for moving said arm toward operative position, and mechanism for bodily moving said lever to impart a predetermined degree of movement to said movable member.

8. A machine comprising two coacting pressing members, one of which is movable relatively to the other, said members being respectively in the form of a jack to support a shoe and a die, means for automatically moving said movable -member into preliminaryengagement with the work in a position for pressure, mechanism for bodily moving said means to thereby move said member to a position of pressure, and a shaft for actuating said mechanism and said means.

9. A press comprising a stationary abutment, a rotatable turret thereon having a plurality of dies, a locking-pin for indexing said turret, a work-support movable toward said abutment, means having a predetermined range of movement for positively moving said work-support toward the operative die, compensating devices for elfectinga positive differential movement of said work-support, and ashaft for actuating said means and said devices.

10. A machine comprising a stationary member and a movable member adapted to receive work of difierent thicknesses between them, automatic controller mechanism for positively actuating said movable member to preliminarily engage the work and then moving said member to press the work a predetermined extent, irrespective of the thickness of the work, and means for manually adjusting said mechanism to effect a variation in the degree of compression.

11. A machine of the character referred to, comprising coacting members, a shaft, an actnator, a wedge between said actuator and one of said members, a device on said shaft for moving said actuator a constant distance, means on said shaft and wedge for moving said wedge to inoperative position, means for yieldingly moving said wedge in the opposite direction to move said last-mentioned member to initially clamp the work between said members, said parts being timed whereby the wedge is first withdrawn and then moved to operative position, and means for subsequently moving one of said members a predetermined distance to compress the Work.

12. A machine for stamping the soles of boots and shoes comprising a member adapted to receive a shoe thereon, a turret having a plurality of members thereon and adapted to be rotated so as to bring said members successively into alinement with the shoe-re- 1 

